Ahead of Market: 10 things that will decide stock market action on Wednesday

Sensex fell 104 points to 78,181 and Nifty 50 declined 32 points to 24,399 on Tuesday's volatile expiry session, with Nifty Smallcap 100 down 0.66 percent and Midcap 100 down 0.37 percent. Profit booking in the latter half was driven by weakness in Asian markets and caution ahead of US Fed minutes, though IT stocks extended gains ahead of Q1 earnings. For Wednesday, Nifty faces immediate resistance at 24530-24550 and crucial support at 24300-24280, with the index holding above its 20, 50, and 100-day EMAs.